Polyketide
聚酮化合物
🗣️ 情景例句
We can't get this bow tie tied.
我们打不好领结。
Keep some till more come.
更多的到手以前，要保持手里的一点。
Men, particularly, spend hours of their leisure time installing their own fireplaces, laying out their own gardens; building garages and making furniture.
特别是男人，常利用空闲时间安装壁炉、布置花园、建造车库、制作家具。